Reworking click and pinch handling to get better behavior on multi-touch devices. r=ahocevar +testing from others (closes #3133)

git-svn-id: http://svn.openlayers.org/trunk/openlayers@11695 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf

lib/OpenLayers/Control/TouchNavigation.js

@@ -44,6 +44,12 @@ OpenLayers.Control.TouchNavigation = OpenLayers.Class(OpenLayers.Control, {
      */
     pinchZoomOptions: null,
 
+    /**
+     * APIProperty: clickHandlerOptions
+     * {Object} Options passed to the Click handler.
+     */
+    clickHandlerOptions: null,
+
     /**
      * APIProperty: documentDrag
      * {Boolean} Allow panning of the map by dragging outside map viewport.
@@ -121,13 +127,14 @@ OpenLayers.Control.TouchNavigation = OpenLayers.Class(OpenLayers.Control, {
      */
     draw: function() {
         var clickCallbacks = {
-            'click': this.defaultClick,
-            'dblclick': this.defaultDblClick
-        };
-        var clickOptions = {
-            'double': true,
-            'stopDouble': true
+            click: this.defaultClick,
+            dblclick: this.defaultDblClick
         };
+        var clickOptions = OpenLayers.Util.extend({
+            "double": true,
+            stopDouble: true,
+            pixelTolerance: 2
+        }, this.clickHandlerOptions);
         this.handlers.click = new OpenLayers.Handler.Click(
             this, clickCallbacks, clickOptions
         );